JPS54127897A - Manufacture of coarse calcium hypochlorite dihydrate - Google Patents

Manufacture of coarse calcium hypochlorite dihydrate

Info

Publication number
JPS54127897A
JPS54127897A JP3535778A JP3535778A JPS54127897A JP S54127897 A JPS54127897 A JP S54127897A JP 3535778 A JP3535778 A JP 3535778A JP 3535778 A JP3535778 A JP 3535778A JP S54127897 A JPS54127897 A JP S54127897A
Authority
JP
Japan
Prior art keywords
axle
clo
crystal
coarse
manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3535778A
Other languages
Japanese (ja)
Other versions
JPS57244B2 (en
Inventor
Tsugio Murakami
Mitsuo Kikuchi
Kazunari Igawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Priority to JP3535778A priority Critical patent/JPS54127897A/en
Priority to AU44649/79A priority patent/AU522166B2/en
Priority to US06/016,981 priority patent/US4248848A/en
Priority to ZA791012A priority patent/ZA791012B/en
Priority to CA000322728A priority patent/CA1138175A/en
Priority to FR7905712A priority patent/FR2424873A1/en
Priority to DE19792908762 priority patent/DE2908762A1/en
Priority to GB7907791A priority patent/GB2017666B/en
Publication of JPS54127897A publication Critical patent/JPS54127897A/en
Publication of JPS57244B2 publication Critical patent/JPS57244B2/ja
Granted legal-status Critical Current

Links

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  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To manufacture the coarse crystals of Ca(ClO)2.2H2O very easily separable from mother liquor by growing a columnar Ca(ClO)2.2H2O crystal whose c-axle is long and a and b axles are short, as a seed crystal, in the crystallization of calcium hypochlorite dihydrate.
CONSTITUTION: A columnar Ca(ClO)2.H2O as a seed crystal is added to a reaction liquor containing Ca(ClO)2.2H2O obtained by the chlorination of Ca(OH)2 for example and the growth of the crystal is performed. The columnar Ca(ClO)2. 2H2O used has 0.5≤b axle/a axle≤2.0, c axle/a axle≥1.5, c axle/a axle≤3.0, and the size of c axle is more than 5 microns, preferably more than 10 microns. In this method, the growth rate of crystal is so very fast that coarse Ca(ClO)2.2H2O can be obtained instantaneously. The preferred amount of the seed crystal is less than 20 wt% of the coarse crystal formed usually.
COPYRIGHT: (C)1979,JPO&Japio
JP3535778A 1978-03-06 1978-03-29 Manufacture of coarse calcium hypochlorite dihydrate Granted JPS54127897A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP3535778A JPS54127897A (en) 1978-03-29 1978-03-29 Manufacture of coarse calcium hypochlorite dihydrate
AU44649/79A AU522166B2 (en) 1978-03-06 1979-02-27 Dihydrate of calcium hypochlorite
US06/016,981 US4248848A (en) 1978-03-06 1979-03-02 Dihydrate of calcium hypochlorite and method for manufacture thereof
ZA791012A ZA791012B (en) 1978-03-06 1979-03-05 Dihydrate of calcium hypochlorite and method for manufacture thereof
CA000322728A CA1138175A (en) 1978-03-06 1979-03-05 Dihydrate of calcium hypochlorite and method for manufacture thereof
FR7905712A FR2424873A1 (en) 1978-03-06 1979-03-06 CALCIUM DIHYDRATE HYPOCHLORITE AND ITS PREPARATION
DE19792908762 DE2908762A1 (en) 1978-03-06 1979-03-06 CALCIUM HYPOCHLORITE DIHYDRATE, METHOD FOR PRODUCING IT AND ITS USE
GB7907791A GB2017666B (en) 1978-03-06 1979-03-06 Dihydrate of calcium hypochlorite and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3535778A JPS54127897A (en) 1978-03-29 1978-03-29 Manufacture of coarse calcium hypochlorite dihydrate

Publications (2)

Publication Number Publication Date
JPS54127897A true JPS54127897A (en) 1979-10-04
JPS57244B2 JPS57244B2 (en) 1982-01-06

Family

ID=12439617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3535778A Granted JPS54127897A (en) 1978-03-06 1978-03-29 Manufacture of coarse calcium hypochlorite dihydrate

Country Status (1)

Country Link
JP (1) JPS54127897A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0223726U (en) * 1988-07-29 1990-02-16
JPH0583853U (en) * 1992-04-01 1993-11-12 忠司 石黒 Electronic desk calculator

Also Published As

Publication number Publication date
JPS57244B2 (en) 1982-01-06

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